Citazione Stile APA (7a Edizione)

Raper, C. L. (1906). The principles of wealth and welfare: Economics for high schools. The Macmillan Company.

Citazione stile Chigago Style (17a edizione)

Raper, Charles Lee.. The Principles of Wealth and Welfare: Economics for High Schools. New York: The Macmillan Company, 1906.

Citatione MLA (9a ed.)

Raper, Charles Lee.. The Principles of Wealth and Welfare: Economics for High Schools. The Macmillan Company, 1906.